21397468

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{577}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 38323712

約数和(自身を除く): 16926244

約数列:

[1, 2, 4, 73, 127, 146, 254, 292, 508, 577, 1154, 2308, 9271, 18542, 37084, 42121, 73279, 84242, 146558, 168484, 293116, 5349367, 10698734, 21397468]

約数ペア:

[(1, 21397468), (2, 10698734), (4, 5349367), (73, 293116), (127, 168484), (146, 146558), (254, 84242), (292, 73279), (508, 42121), (577, 37084), (1154, 18542), (2308, 9271)]